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WorksheetsMicroorganisms friends and foes
Total questions: 20
Worksheet time: 3mins
Bacteria is known as__________________ in an ecosystem when feeding on dead organisms.
Decomposers
Herbivore
Pathogens
Infections
Fungi is beneficial to us beacause of the following reason
They are a source of oxygen
They can clean up pollution
They are a source of antibiotics
They help to clean run off from waste
A Bacteria responsible for curdling of milk is
Rhizobium
Oscillatoria
Lactobacillus
Plasmodium
The Fermentation process is discovered by
Louis Pasture
Alexander flaming
Edward jenner
John Mendal
Amoeba belongs to
Algae
Fungi
Virus
Protozoa
The process of conversion of sugar into alcohol in the absence of oxygen is called
Pasteurization
Vaccination
Fermentation
Decomposition
Carrier of malaria causing protozoan is
Female Anopheles mosquito
Cockroach
Housefly
Butterfly
Who discovered vaccine for smallpox?
Robert Koch
Edward Jenner
Louis Pasteur
Alexander Fleming
Cholera is caused by
Bacteria
Protozoa
Virus
Fungi
Plant diseases rust of wheat is caused by
Bacteria
Virus
Fungi
Protozoa
Female Aedes mosquito is the carrier of
Corona virus
Dengue virus
Common cold virus
Measles virus
Diseases anthrax caused by
Virus
Bacteria
Fungi
None of these
Disease causing microbes are called
Pathogens
Protozoa
Parasites
Microbes
Which of the following is not a bacteria
E.Coli
Salmonella
Bacillus Anthracis
Bacteriophage
Antibiotics are not useful against viral infections
False
True
Name the chemical preservative used in jams and squashes
Carbon Benzoate
Salt
Sodium metabisulphite
Oil and vinegar
Influenza is a disease caused due to
bacteria
Virus
Protozoa
None of the above
